City of Sioux City
Sioux City, IA
- 2,000,000 gallon water storage tank with 32 legs
- 100% solids interior coating and fluoropolymer exterior coating
- Blasting debris and paint containment shroud
- Close coordination with antenna owners to maintain communication services during construction
- Challenging surface preparation and coating application to several structural steel members on the interior wet portion of the tank
- Representative dry film thickness testing 100,000 square feet of surface area
Water Storage Tank Repainting
The Morningside elevated water storage tank has been providing water service to Sioux City residents and businesses since 1958. DGR Engineering evaluated the condition of the existing coatings to determine an appropriate maintenance strategy. The selected strategy is expected to provide excellent corrosion protection to the structure for 25-30 years into the future.
The residential location of the tank caused the City to include a containment shroud as a project requirement. The shroud successfully prevented blasting debris and paint from drifting off-site to neighboring properties.
In just under four months, the tank was drained, sandblasted, and nearly 1,900 gallons of paint applied to over 100,000 square feet of surface area. The tank was then returned to service.
- Electrical Power
Wastewater Treatment Facility
MBBR technology was chosen based on cost, operational flexibility and most importantly, limited land availability.
DGR employed a Geographic Information System (GIS) in conjunction with the U.S. Army Corps of Engineers to first determine the 100-year flood elevations and delineate the floodway boundaries.
Due to concerns with the age and condition of the structures, along with safety clearances to energized equipment and conductors, a project was undertaken to replace the old infrastructure with new underground lines and associated padmount equipment.
Redwood Falls, MN
Street & Utility Improvements
Morningside Avenue was reconstructed totaling approximately 1,300 linear feet. The project included new sanitary sewer, water main, storm sewer, fiber conduits, decorative street lighting, and 9-inch concrete paving with colored concrete sidewalks.
Sioux City, IA
Wastewater Treatment Facility (SBR)
The City ultimately determined a flow-through style SBR system to be the preferred choice based on the selection criteria and the ability to meet anticipated permit limits.
Orange City, IA
Planning started with site plan design for the new facility to offer maximum exposure to traffic on Highway 75.
Rock Rapids, IA